This 64,000-square-foot building, known as Meadowwood Three, is designed by Bernardo Wills Architects. It will be the new home to an expansion from Liberty Mutual Insurance, which already leases more than 100,000 square feet in the Meadowwood One building.

Construction already is under way on a major expansion of the Meadowwood Technology Campus, 2100 N. Molter Road in Liberty Lake. A new 64,000-square-foot, two-story office building should be ready for occupation in April 2014, announced Wayne Frost, managing director of commercial interests for Greenstone Corp.

Liberty Mutual Insurance will lease the entire building in addition to space it already has as a major tenant on the property, Frost said. The insurance carrier currently leases 105,000 square feet in the original building on campus, which Greenstone purchased from Agilent Technologies Inc. in 2010.

"They will continue to use the offices they already have and will expand into the new space," Frost said.

Liberty Mutual moved about 800 jobs from its service center and claims call center to Meadowwood Technology Center in 2011, Frost said.

Liberty Lake is a regional office for Liberty Mutual covering Eastern Washington, Eastern Oregon, Idaho and Montana for the Boston-based auto, home and life insurance carrier.

"This is the first expansion since we acquired the property from Agilent," Frost said. "We currently have 250,000 square feet, and this expands the campus by 64,000 square feet.

"We envision this property eventually having anywhere from 750,000 to a million square feet of office space. I'm hopeful the economy will continue to expand so that we can get there."

Frost said primary construction on the building's framework should be completed in January, with the tenant taking full possession in mid-June.